Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020136164 - A PROCESS FOR PRODUCING POLYOLEFIN FILM COMPOSITION AND FILMS PREPARED THEREOF

Publication Number WO/2020/136164
Publication Date 02.07.2020
International Application No. PCT/EP2019/086916
International Filing Date 23.12.2019
IPC
C08F 210/16 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
C08J 5/18 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
C08L 23/08 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
23Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
02not modified by chemical after-treatment
04Homopolymers or copolymers of ethene
08Copolymers of ethene
CPC
C08F 210/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
C08J 2323/08
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
2323Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
02not modified by chemical after treatment
04Homopolymers or copolymers of ethene
08Copolymers of ethene
C08J 5/18
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
5Manufacture of articles or shaped materials containing macromolecular substances
18Manufacture of films or sheets
C08L 2203/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2203Applications
16used for films
C08L 2205/025
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2205Polymer mixtures characterised by other features
02containing two or more polymers of the same C08L -group
025containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
C08L 2205/03
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
2205Polymer mixtures characterised by other features
03containing three or more polymers in a blend
Applicants
  • BOREALIS AG [AT]/[AT]
Inventors
  • TRAN, Tuan Anh
  • HARTL, Anna
  • KELA, Jarmo
Agents
  • CAMPBELL, Neil
Priority Data
18248111.928.12.2018EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A PROCESS FOR PRODUCING POLYOLEFIN FILM COMPOSITION AND FILMS PREPARED THEREOF
(FR) PROCÉDÉ DE PRODUCTION D'UNE COMPOSITION DE FILM DE POLYOLÉFINE ET FILMS AINSI PRÉPARÉS
Abstract
(EN)
The present invention deals with a process for producing a multimodal ethylene polymer composition suitable for producing films by blow moulding. The process comprises (i) (co)polymerising ethylene and optionally an alpha-olefin comonomer in a first polymerisation step in the presence of a silica supported Ziegler-Natta polymerisation catalyst to produce a first ethylene homo- or copolymer (PE1) having a melt flow rate MFR2 of from 15 to 300 g/10 min; (ii) (co)polymerising ethylene and optionally an alpha-olefin comonomer in a second polymerisation step in the presence of the first ethylene homo- or copolymer to produce a first ethylene polymer mixture (PEM1) comprising the first ethylene homo- or copolymer and a second ethylene copolymer, said first ethylene polymer mixture having a density of from 940 to 980 kg/m3 and a melt flow rate MFR2 of from 100 to 600 g/10 min, and wherein the MFR2 of the first ethylene homo- or copolymer (PE1) is lower than first ethylene polymer mixture (PEM1) and the second ethylene homo- or copolymer (PE2) has a melt flow rate MFR2 of from 400 to 2000 g/10min and (iii) copolymerising ethylene and at least one alpha-olefin comonomer in a third polymerisation step in the presence of the first ethylene polymer mixture to produce a second ethylene polymer mixture (PEM2) comprising the first ethylene polymer mixture and a third ethylene copolymer (PE3), said second ethylene polymer mixture having a density of from 920 to 940 kg/m3 and a melt flow rate MFR5 of from 0.1 to 5 g/10 min.
(FR)
La présente invention concerne un procédé de production d'une composition de polymère d'éthylène multimodal convenant à la production de films par moulage par soufflage. La présente invention concerne un procédé qui comprend les étapes qui consistent à (i) (co)polymériser de l'éthylène et éventuellement un comonomère d'alpha-oléfine dans une première étape de polymérisation, en présence d'un catalyseur de polymérisation Ziegler-Natta sur silice, pour produire un premier homopolymère ou copolymère d'éthylène (PE1) présentant un indice de fluidité MFR2 compris entre 15 et 300 g/10 mn ; (ii) à (co)polymériser l'éthylène et éventuellement un comonomère d'alpha-oléfine dans une deuxième étape de polymérisation, en présence du premier homopolymère ou copolymère d'éthylène, afin de produire un premier mélange de polymères d'éthylène (PEM1) comprenant le premier homopolymère ou copolymère d'éthylène et un deuxième copolymère d'éthylène, ledit premier mélange de polymères d'éthylène présentant une densité comprise entre 940 et 980 kg/m3 et un indice de fluidité MFR2 compris entre 100 et 600 g/10 mn, le MFR2 du premier homopolymère ou copolymère d'éthylène (PE1) étant inférieur à celui du premier mélange de polymères d'éthylène (PEM1) et le deuxième homopolymère ou copolymère d'éthylène (PE2) présentant un indice de fluidité MFR2 compris entre 400 et 2000 g/10 mn ; et (iii) à copolymériser l'éthylène et au moins un un comonomère d'alpha-oléfine dans une troisième étape de polymérisation, en présence du premier mélange de polymères d'éthylène, afin de produire un deuxième mélange de polymères d'éthylène (PEM2) comprenant le premier mélange de polymères d'éthylène et un troisième copolymère d'éthylène (PE3), ledit deuxième mélange de polymères d'éthylène présentant une densité comprise entre 920 et 940 kg/m3 et un indice de fluidité MFR5 compris entre 0,1 et 5 g/10 mn.
Latest bibliographic data on file with the International Bureau